262 Yorkshire Naturalists at Settle. 
At Horton, on Monday, the Grits and Conglomerates of 
the Ingletonian Series were examined in the bed of the Ribble 
at Row End, and in Messrs. Delaney’s Quarry near the station. 
At the latter place they are worked below the level of the ground 
to a depth of roo feet. The beds of the Ingletonian Series are 
probably the oldest strata exposed inthe county. Mr. Rastall, 
who has made a detailed stratigraphical and petrological exami- 
nation of these rocks, has arrived at the conclusion that they 
are of Pre-Cambrian age, and the materials from which they 
have been formed were derived by denudation from an area of 
igneous rocks. In the upper part of Messrs. Delaney’s Quarry 
the Great Scar Limestone is worked for lime-burning. Owing 
to the lower beds not being worked, the junction between the 
limestone and the Ingletonian is not seen. 
South of Horton the Ingletonian Series is succeeded by 
Ardovician and Silurian Rocks, which have bent into a series 
of folds with their axes striking N.W. and S.E. These folds 
were denuded to an almost level surface before they sunk 
below the waters to form the sea floor upon which the limestone 
of Moughton Fell was deposited. Near Garth House, and again 
under Horton Wood, the Austwick Grits were seen in a double 
synclinal, and at Cragg Hill, the Bala Limestones and shales 
with the lower beds of the Silurian bent over them. <A few 
corals and brachiopods were collected from the weathered 
limestones. 
Near Cragg Hill, on the south side of the anticlinal, an 
outcrop of the Moughton Whetstone was found. This curiously 
coloured rock is found on the north side of the fold in the 
Crummock Valley, and .is used locally as a whetstone. The 
Horton flags occupy the trough of the fold south of Cragg 
Hill, and appear on the surface for a distance of two miles. 
The unconformity between the Silurians and the Carboniferous 
Limestone is clearly seen at Arco Wood, and at Combe Quarry, 
where the flags have been quarried back to the face of the lime- 
stone which rests upon their upturned and denuded edges. 
Worm tracks were noticed in the flags at Combe Quarry. 
Actinocrinus was found at Dry Rigg, and Orthoceras at Helwith 
Bridge. Helworth Moss was visited, and a section of peat 
6 feet thick was seen. On the way down the river bank, 
Stainforth Force was passed where some excellent examples of 
‘ pot-hole’ formation were seen in the limestone bed of the 
stream. 
——:0: 
From Mr. J. Wilfrid Jackson we have received a ‘ Report on the Animal 
Remains found at the Roman Fort at Manchester,’ and also a reprint 
from the Annals and Magazne of Natural History dealing with the ‘De- 
generation in the Teeth of Oxen and Sheep.’ The latter is based upon 
an examination of specimens from Derbyshire, Yorkshire, Lancashire, 
uc; 
Naturalist, 
